China has been very much a divided nation since the fall of the Qing dynasty
Chiang Kai-shek
Leader of a nationalist movement called the Guomindang (GMD)
Northern Expedition
1. Chiang Kai-shek sends his armies to the north of China to try to bring in territories not under his control yet, up to and including Manchuria
2. Leads to a split between the GMD led by Chiang Kai-shek and the Chinese Communist Party led by Mao Zedong, resulting in civil conflict
There is political instability in Japan, with disagreements between the political leadership, the emperor, prime ministers, and the military over who is pulling the strings of Japanese foreign policy
Zhang Xueliang
A Manchurian warlord with desires to push into China to unify more territory under his control
The Japanese military called the Kwantung Army assassinates Zhang Xueliang
Without the emperor's sanction, showing the Japanese political authority does not have control of the military
The Great Depression beginning in 1929 in the US impacts every country in the world that does business overseas, devastating Japan's economy which relied on imports and exports
The US launches the Smoot-Hawley Tariff Act
Increases the price of Japanese imports by 200%, crushing Japanese exports
The Great Depression pushes the Japanese military and political leadership to feel the need to acquire their own raw materials, seeing Manchuria as a source
Lebensraum
Living space for an ever-growing Japanese population
Mukden Incident
1. The Kwantung Army claims an explosion at a Japanese-owned railway in Manchuria was done by the Chinese, using this as a pretext to seize Manchuria
2. By early 1932, Manchuria is completely under Japanese control
Fighting breaks out in Shanghai, with the Japanese air force bombing the city, leading Chiang Kai-shek to concede control of Manchuria to Japan in the Treaty of Tanggu in May 1933
Manchukuo
The puppet state established by Japan in Manchuria, with the last Qing emperor Puyi as its nominal ruler
The crisis deepens tensions between Japan and Western powers, leading to Japan's abandonment of internationalism and the League of Nations condemning its actions
The GMD focuses on defeating the Chinese Communist Party, while Japan benefits from Manchuria's resources
Japan's military is now definitively pulling the strings of the democratically elected government and even the emperor